Specifications Flush Wood Veneer Flush Wood Veneer Crossbanded Particleboard Core 5502H 5P02H Crossbanded Structural Composite Lumber Core 5508H 5P08H Crossbanded Lead Lined Core 5515H 5P15H Crossbanded Sound Core 5550H 5P50H SR-20PP 5P50H SR-45PP 5540H 5P40H SR-20PP-5 5P40H SR-45PP-5 Crossbanded Stave Lumber Core 5507H 5P07H Crossbanded Mineral Core 5545H 5P45H 5511H 5P11H Agrifiber Core 5P09H 5509H